Fertilizers added to crops on farms can collect in runoff and enter the watershed. This problem would be reduced in areas where A A) crops are grown for animals as well as humans. A) crops are grown for animals as well as humans.

B B) farms are situated on the sides of mountains. B) farms are situated on the sides of mountains.

C C) an extended drought leads to little or no rain. C) an extended drought leads to little or no rain.

D D) the growing season of the crops is longer. D) the growing season of the crops is longer.

How far down have geologists drilled holes ? (science) a: 3.8 km b: 12 km c: 100 m d: 1200 km

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.

You are studying a protein that you call protein x. there is an aspartic acid at a key position in protein x which is important in the folding and stabilization of that protein. if this aspartic acid is changed to a different amino acid, which type of amino acid substitutions is most likely to allow the protein to fold normally?